Home / 57,197.39-78,932.27-31,355.90

Finding the Fourth Proportional to 57,197.39, 78,932.27 and 31,355.90

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Solution

The fourth proportional to 57,197.39, 78,932.27 and 31,355.90 is: 43,271.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,197.39 : 78,932.27 = 31,355.90 : x
  2. Step 2: Convert to fraction form
    57,197.39/78,932.27 = 31,355.90/x
  3. Step 3: Cross multiply
    57,197.39x = 78,932.27 × 31,355.90
  4. Step 4: Simplify right side
    57,197.39x = 2,474,991,813.45
  5. Step 5: Solve for x
    x = 2,474,991,813.45/57,197.39
  6. Step 6: Final answer
    x = 43,271.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.